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Selection for immunity in swede ( Brassica napus ) to infection by turnip mosaic virus
Author(s) -
TOMLINSON J. A.,
WARD C. M.
Publication year - 1982
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1982.tb00799.x
Subject(s) - turnip mosaic virus , biology , clubroot , brassica , inoculation , powdery mildew , brassica oleracea , cultivar , turnip yellow mosaic virus , botany , virus , virology , plant virus , horticulture , potyvirus
SUMMARY Fully heritable immunity to turnip mosaic virus (TuMV) was found in swede ( Brassica napus ) cvs Ruta Otofte and Bangholm. Attempts to ‘break’ this immunity were unsuccessful. The reactions of two immune lines of cv. Ruta Otofte to cauliflower mosaic virus, clubroot ( Plasmodiophora brassicae ) and powdery mildew ( Erysiphe cruciferarum ) were unchanged compared with the unselected parent line. A symptomless response to TuMV inoculation (possibly immunity) was also found in cv. Acme but not in the clubroot resistant cv. Marian. The percentage of plants which gave a symptomless response to TuMV inoculation differed greatly between cultivars and some seed stocks.